By the end of the 21st century, scientists__________a cure for the common cold.
Giải bởi Vietjack
Đáp án B
Câu sử dụng thì tương lai hoàn thành vì có cụm từ “By the end of the 21st century”
Which of the followings is NOT an evidence of monitoring studying?
Our flight was delayed, but the plane finally _______shortly after midnight.
Which of the followings is the flow of water from the ground to the surface?
In the US, each company decides for itself (100) ________ to close or remain open on those days.
According to the passage, to learn new information, low-achieving students do NOT______.
Which of the followings is NOT badly affected by contaminated groundwater?
